- The W1209 thermostat module controller has a sensor input, keys, LED display, and a relay. It can be reprogrammed for control, timing, or counting.
- Embedded CPU chip (MCU), more intelligent, lower power consumption.
- Automatic power set memory (MCU built-in EEPROM memory unit).
- Control accuracy of 0.1 degrees Celsius. Have been tested for stability, consistency and reliability.
Connect the power supply and the load, you can supply to the controller, Is displayed as a measured temperature, Press the SET button, the display flashes the temperature,
Press - to set the desired temperature, After setting press SET to confirm return,
The controller automatically performs the relay by setting off!
Lights, LED status descriptions:
Indicator: Off The relay is switched off, Always indicate the relay is closed.
LED: Shows LL is the sensor open, showing ?HH is out of range, the thermostat will be forced to close the relay, the display --- as high temperature protection.
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